CN1187887C - Electric motor driving circuit, motor driving method and semiconductor integrated circuit - Google Patents
Electric motor driving circuit, motor driving method and semiconductor integrated circuit Download PDFInfo
- Publication number
- CN1187887C CN1187887C CNB011089229A CN01108922A CN1187887C CN 1187887 C CN1187887 C CN 1187887C CN B011089229 A CNB011089229 A CN B011089229A CN 01108922 A CN01108922 A CN 01108922A CN 1187887 C CN1187887 C CN 1187887C
- Authority
- CN
- China
- Prior art keywords
- motor
- signal
- magnetic pole
- speed
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/10—Arrangements for controlling torque ripple, e.g. providing reduced torque ripple
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
- H02P6/085—Arrangements for controlling the speed or torque of a single motor in a bridge configuration
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
- H02P6/17—Circuit arrangements for detecting position and for generating speed information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
A motor driving system according to the present invention comprises a power converter for supplying a brushless motor having a permanent magnetic rotor with pulse-width modulation controlled driving power; a magnetic-pole position detector for detecting a magnetic-pole position of the motor rotor; a speed detecting means for detecting a rotational speed of the motor according to an output signal of the magnetic-pole position detector; a speed control operation means for outputting a deviation of an output signal of the speed detecting means from a speed instruction; a means for generating a plurality of instruction signals in response to an output signal of the speed control operation means; a means for generating modulated waves by selecting one of the plurality of instruction signals according to the output signal of the speed control operation means; and a means for controlling the power converter by means of pulse width modulation according to the modulated waves.
Description
Technical field
The present invention relates to the method and the conductor integrated circuit device of motor drive circuit, drive motor.
Background technology
In recent years, in the circuit and the semiconductor device technical field that are used for driving the motor in household electrical appliance or the industrial equipment, for drive motor, directly be transported to motor through the voltage or its corresponding direct voltage of rectification by inverter from source power supply, this method is used widely.This method is mainly used in the purpose that realizes efficient and motor miniaturization.Reduced loss current with the high voltage drive motor, and prevented that the loss that internal resistance or similar impedance cause from increasing.In addition, can make that the wire diameter of motor winding is littler, help motor miniaturization.
Need an inverter unit because drive brushless motor, wish to use a kind of cheap inverter unit in household appliance technical field.Therefore, be used for the inverter driving moving cell of brushless motor, using a kind of 120-degree method of supplying power to of cheapness.The circuit structure of this method is simple, can realize higher relatively motor efficiency.
For the motor drive circuit in the 120-degree method of supplying power to, motor is driven in the following manner: the position of magnetic pole that detects motor rotor by the magnetic pole detector; The on/off state Be Controlled of each switch element of inverter unit is with the time of response rotor magnetic pole and magnetic pole of the stator coupling.The position of magnetic pole of rotor is detected by Hall generator, and Hall effect is applied to this Hall generator usually, or passes through the position of magnetic pole of Hall IC detection rotor, and this Hall IC has an amplifier that is embedded in the Hall element.For the signal of this detection, 120 degree in 180 degree of representing with electrical degree are switched on power supply in theory.That is to say that remaining 60 degree is carried out the operation of cutting off inverter output.Therefore, electric current demonstrated a current waveform that sharply changes (di/dt) immediately after motor current i was switched on/cuts off.This di/dt vibrating motor winding, the electromagnetic sound that is produced pass to the outside.The frequency of this electromagnetic sound and motor speed and motor poles number are proportional.Because several Hz in the rotating range that frequency range is used from actual motor are to hundreds of Hz, this sound becomes the noise that can hear.
In addition, if the motor current waveform comprises a large amount of harmonic contents, motor torque is tending towards causing pulsation usually.Because motor torque specific induced voltage that is motor and motor current is long-pending, the motor current waveform is depended in the pulsation of motor torque to a great extent.Torque pulsation makes motor self vibration, causes installing the seat vibration of motor.As a result, produce noise.
As the method that reduces noise, it is sinusoidal wave making motor drive current by so-called PWM (pulse-width modulation) control.Specifically, obtain sinusoidal signal by the magnetic flux that uses Hall element to detect the motor stator magnetic pole.By comparator this sinusoidal signal is compared with carrier signal, obtain pwm signal, this carrier signal is the output signal of carrier generator.The on-off control of carrying out inverter unit by pwm signal makes motor current remain on sinusoidal state.Yet if require higher level operation, problem is that system becomes more complicated more, expensive more than using 120-degree method of supplying power to.
Summary of the invention
The object of the present invention is to provide a kind of method and conductor integrated circuit device that has better simply relatively circuit and produce low noise motor drive circuit and drive motor.
The invention provides a kind of drive circuit with motor of stator winding and p-m rotor, described motor drive circuit comprises: the power inverter that is used for providing to motor the driving power of modulating through pulsewidth; Be used to detect the device of motor rotor position of magnetic pole; Be used for detecting the device of motor rotary speed from the output of the device that detects position of magnetic pole; Be used to export the device of the deviation of the motor rotary speed of detection and speed command; Be used to respond the device that described deviation produces a plurality of command signals; Signal selecting, according to one in a plurality of command signals of motor magnetic pole choice of location, and sets of signals is selected in output; Be used for from the device of described selection sets of signals and carrier signal generation modulating wave; With the device that is used for coming by pulse-width modulation the power controlling converter according to modulating wave.
In the present invention, the quiet motor drive circuit is integrated in the monolithic semiconductor chip.The invention provides a kind of conductor integrated circuit device, in same semiconductor chip, comprise: the thyristor that is used for providing the power of modulating through pulsewidth to motor; Be used to produce the device of a plurality of command signals with the deviation of response motor rotational speed signal and speed command; Thereby be used for selecting a device of a plurality of command signals with the position of magnetic pole detection signal of generation modulating wave response motor; And the device that is used for controlling by pulse-width modulation thyristor according to modulating wave.
The semiconductor integrated circuit of monolithic can be with the magnetic pole position detector motor casing of packing into.In this connection, can be installed in the outside of motor casing according to motor drive circuit of the present invention, or the resin shell of packing into is interior with modularization.In addition, motor can not use the mode of magnetic pole position detector or similar fashion to be driven with the estimation position of magnetic pole yet; This mode is called as the sensorless mode.
The present invention also provides a kind of electric motor drive system, comprising: have the stator of being with winding and the motor with p-m rotor, described p-m rotor is placed in the stator; Power inverter provides the driving power of pulse width modulation controlled to motor; Magnetic pole position detector is used to detect the position of magnetic pole of motor rotor; Speed detector is used for detecting the motor rotary speed according to the output signal of magnetic pole position detector; The speed control operation device is used for the output signal of output speed checkout gear and the deviation of speed command; Be used to produce the device of a plurality of command signals with the output signal of response speed control operation device; Be used for according to the output signal of speed control operation device by selecting a signal to produce the device of modulating wave from a plurality of command signals; With the device that is used for passing through the pulse width modulation controlled power inverter according to modulating wave.
The present invention provides a kind of motor again, it comprises the stator of being with winding, is placed on p-m rotor and a casing that holds stator and rotor in the stator, wherein this motor is driven by drive circuit, described drive circuit comprises: power inverter provides the driving power of pulse-width modulation to motor; Be used to detect the device of the position of magnetic pole of motor rotor; Be used for detecting the device of motor rotary speed according to the output of the device that detects position of magnetic pole; Be used to export the device of the deviation of the motor rotary speed of detection and speed command; Be used to respond the device that this deviation produces a plurality of command signals; Signal selecting be used for selecting a signal according to the motor magnetic pole position from a plurality of command signals, and sets of signals is selected in output; Be used for from the device of described selection sets of signals and carrier signal generation modulating wave; Be used for according to the device of modulating wave by the pulse width modulation controlled power inverter; Wherein said motor drive circuit is positioned in the casing.
The invention provides a kind of method of utilizing power inverter to drive brushless motor, this power inverter is by the pulse-width modulation Be Controlled, described method comprises step: produce the deviation between motor rotary speed and the speed command, the motor rotary speed is produced by the position of magnetic pole detection signal group of motor rotor; Produce a plurality of command signals according to this deviation; Position of magnetic pole according to motor rotor is selected a signal from a plurality of command signals, produce modulating wave; With according to modulating wave by the pulse width modulation controlled power inverter.
Description of drawings
Fig. 1 shows according to the motor drive circuit of embodiment 1 and electric motor drive system;
Fig. 2 shows the work wave according to each part of embodiment 1;
Fig. 3 shows the method according to the selection instruction signal of embodiment 1;
Fig. 4 shows the input waveform and the output waveform of signal distribution circuit shown in Figure 3;
Fig. 5 shows the work wave according to each part of embodiment 2;
Fig. 6 shows according to embodiment 2 and is used to produce the circuit structure of selecting signal;
Fig. 7 shows the logical construction of signal distribution circuit shown in Figure 6;
Fig. 8 shows the motor that monolithic semiconductor integrated circuit is housed according to embodiment 3;
Fig. 9 shows the section according to the dielectric isolation substrate of the monolithic semiconductor integrated circuit of embodiment 4;
Figure 10 shows the plane pattern according to the monolithic semiconductor integrated circuit of embodiment 4.
Describe the preferred embodiments of the present invention in detail below with reference to accompanying drawing
Embodiment
(embodiment 1)
Fig. 1 shows the electric motor drive system of this embodiment, comprises motor drive circuit and motor.In Fig. 1, motor 4 is three-phase brushless motors, thereby this motor comprises the magnetic pole position detector 5 of the position of magnetic pole of a permanent magnet that embeds rotor and the magnetic flux detection rotor that detects the permanent magnet generation.In this embodiment, Hall IC is used as magnetic pole position detector 5.Hall IC comprises a Hall element and a zero cross circuit, and zero cross circuit will be suddenly and the detection signal of element output converts logical signal (hu, hv, hw) to.Each is handled by a magnetic pole position detector 5.Magnetic pole position detector 5 is set makes that the phase difference between each phase electrical degree of three-phase is 120 degree.
An input of motor, promptly the winding of motor stator is connected to inverter unit 3.Inverter unit 3 comprises a circuit, and six switch elements such as power MOSFET (mos field effect transistor) and IGBT (igbt) are combined in this circuit.Utilize 2 pairs in rectifier to exchange the DC power supply that source power supply 1 rectification acquisition is used as the power supply of inverter unit 3.The on/off state of each switch element of inverter driving moving cell 8 control inverter unit 3.
By the way, be formed in the monolithic semiconductor integrated circuit device by the drive circuit 6 of dotted line among Fig. 1.In addition, drive circuit 6 and the magnetic pole position detector 5 that is surrounded by chain-dotted line is combined in the motor 4.They are integrated into the brushless motor with built-in driving circuit 7.
The method of inverter unit 3 drive motors that use Fig. 1 is described below with reference to working waveform figure shown in Figure 2.Under the situation of position detection signal hu shown in Figure 2, hv, hw, position of magnetic pole detection signal group h (hu, hv, hw) is that the maintenance phase difference is one group of logical signal of 120 degree electrical degrees during motor 4 rotations.This position detection signal group h (hu, hv, hw) has the information relevant with electromotor velocity (for example, the pulse signal of a period of time).Therefore, by selecting a position detection signal hw from position detection signal group h (hu, hv, hw), and, determine DC voltage component corresponding to actual speed by utilizing frequency-voltage converter (F/V) 15 to convert position detection signal hw to voltage.In this connection, in the present invention,, also can use hu or hv though the position detection signal hw speed that is used to detects, perhaps a plurality of signals of selecting from hu, hv and hw also can be used.
Speed control operation device 13 (for example, processor such as microcomputer) DC voltage component (being rate signal) is compared with the speed command in being stored in speed control operation device 13, and export thus obtained deviation, described DC voltage component is the output of frequency-voltage converter (F/V) 15.This output signal is a d. c. voltage signal, and it is called as the current command signal of motor.An inverting amplifier 12 converts current command signal a to current command signal b.In addition, be used to produce mid point signal of device output of mid point 20, the potential value of this mid point signal is the intermediate electric potential of current command signal a and b.As Fig. 2 and mention later shown in Figure 3, in this embodiment, the electromotive force of mid point signal is earth level (0 level).Current command signal a, b and mid point signal are transfused to signal selecting 11.
As input signal, signal selecting 11 received current command signal a and b, mid point signal and position detection signal group h (hu, hv, hw), wherein current command signal a and b are analog signal, and the mid point signal is a ground level, and position detection signal group h (hu, hv, hw) is a logical signal.Be response position detection signal group h (hu, hv, hw), signal selecting 11 is from one of following selection: current command signal a, b and mid point signal.Then, signal selecting 11 produces and exports a selection sets of signals s (su, sv, sw) who becomes the modulating wave of PWM control.The porch of selection sets of signals s (su, sv, sw) and the porch of position detection signal group h (hu, hv, hw) are synchronous.For example, as shown in Figure 2, select the rising and falling edges of direct impulse (when current command signal a is selected) of signal su synchronous with the trailing edge of the trailing edge of position detection signal group hu and position detection signal hv respectively.In addition, select the rising edge (when ground level changes to negative level) of negative-going pulse (when current command signal b is selected) of signal su and trailing edge (when when negative level turns back to ground level) synchronous with the rising edge of the rising edge of position detection signal hu and position detection signal hv respectively.In this connection, in a similar fashion, the edge of selection signal sv and the edge of position detection signal hv and hw are synchronous, and the edge of selection signal sw and the edge of position detection signal hw and hu are synchronous.In addition, select the high level voltage of sets of signals s (su, sv, sw) consistent with the voltage level of current command signal a.On the other hand, low level voltage is consistent with the voltage level of current command signal b.In this connection, select the voltage level of sets of signals s also to have and the proportional value of the voltage level of current command signal a and b.
Select sets of signals s (su, sv, sw) to be imported into filter circuit 10, thereby the waveform of each selection signal of filter circuit 10 processing selecting sets of signals s all become level and smooth.Filter circuit 10 outputs have the signal of smooth waveform as selecting signal fu, fv, fw.Comparator 9 will select signal fu, fv, fw and carrier signal (for example triangular wave) relatively to produce a pwm signal, and this carrier signal is the output of carrier generator 14.Pwm signal is imported into inverter driving moving cell 8, and inverter driving moving cell 8 is the on/off state of each switch element of control inverter unit 3 successively.
Above-mentioned structure control motor rotary speed, thus the motor rotary speed is consistent with the speed command that speed control operation device 13 provides.More particularly, when the motor rotary speed was lower than speed value, the value of current command signal a increased.So just increase the amplitude of selecting sets of signals s (su, sv, sw), cause the operation ratio of pwm signal to increase.Thereby the output current of inverter unit 3 increases, and produces the motor torque that increases, and motor is quickened, and finally makes the motor rotary speed consistent with speed value.When the motor rotary speed was higher than speed value, the value of current command signal a reduced.Carry out and above-mentioned opposite step, make motor deceleration, finally make the motor rotation consistent with speed value.
In this embodiment, the motor current command signal is a direct voltage, and is selected as appropriate signal by position detection signal, produces the rectangle modulated wave and is used for PWM control.Therefore, better simply relatively PWM control can drive brushless motor.Therefore, because drive circuit becomes simply, the brushless electric drive circuit can be miniaturized.In addition, the circuit of simplifying makes us can produce a pwm signal in a control circuit, pwm signal is produced by speed control operation device (as microcomputer) in the prior art, this control circuit is integrated in the monolithic semiconductor integrated circuit 6, and inverter unit 3 is installed on this monolithic semiconductor integrated circuit.In other words, pwm control circuit, inverter driving moving cell (switch element driver circuit) and converter main circuit can be integrated on the monolithic IC.This can reduce various controls or the processor of Stateful Inspection such as the load of microcomputer of operating motor drive system.Thereby, can use the processor of small-sized or low price.In addition, if semiconductor integrated circuit 6 comprise the speed value initialization circuit and as the circuit of above-mentioned generation current command signal a, so just need not speed control operation device 13.
In this embodiment, filter circuit makes and selects the waveform of sets of signals s (sv, su, sw) to become level and smooth.Yet direct use also provides than the more level and smooth motor current waveform of 120 degree method of supplying power to as modulated wave to select sets of signals s (sv, su, sw).In this embodiment, about in the 120 degree method of supplying power to corresponding to the inverters output blocking intervals of 60 degree electrical degrees, execution be that the PWM control rather than the inverter output of 50% duty ratio is turn-offed.Therefore, motor current works to the smoothing current waveform during this period.This is the reason that the motor current waveform becomes level and smooth.In this connection, filter circuit is provided, produce more level and smooth current waveform, make electric moter noise lower.
Specifically describe the method that present embodiment is selected current command signal with reference to figure 3.In Fig. 3, position detection signal hu, hv, hw are distributed by signal distribution circuit 31 as logical signal, and are used as drive signal ut, um, ub, vt, vm, vb, wt, wm, the wb output of analog switch group 32.Fig. 4 shows the distributing signal waveform.Corresponding to high level, intermediate point (ground connection) level and the low level of selecting signal su, drive signal ut, um, ub become high level respectively.As ut, um, when ub is high level, the switch that is connected respectively to current command signal a, centre (ground connection) electromotive force, current-order b is switched on.As a result, produce waveform selection signal su as shown in Figure 2.Produce other in an identical manner and select sets of signals sv, sw.By this way, the output signal drive analog switch group 32 of signal distribution circuit 31.The operation of analog switch allows the motor current command signal selected.The motor current command signal is imported into amplifier 33 and selects signal to produce.The output signal of amplifier 33 is input to comparator 9 by filter circuit 10.Comparator 9 compares (in this embodiment, being triangular wave) to produce a pwm signal with this output signal and carrier signal.
(embodiment 2)
Below with reference to Fig. 5 embodiment 2 is described.Though the accompanying drawing of embodiment 2 is omitted, the similar of the drive system of this embodiment is in structure embodiment illustrated in fig. 1.The quantity that difference between these two embodiment is selecteed current command signal level is increased to four level (a, c, d, b) from three level (a,, b).
In the embodiment shown in fig. 1, the selection signal of each phase is formed by the switching signal of 60 degree+120 degree, and selects signal by segmentation in this embodiment, every section 60 degree.In primary importance, produce selection sets of signals s by current command signal and position detection signal group h.In this case, current command signal is four DC level a, b, c, the d that converts to from motor current instruction a.
Fig. 6 shows and is used in particular for producing the circuit structure of selecting signal.Current command signal a, b, c, d produce in the mode shown in the following expression:
b＝-a…?(1)
d＝a/z…(2)
c＝-d…?(3)
Here, z represents a gain.Thereby gain z is conditioned corresponding with the induction voltage waveform level of motor.For example, selection signal shown in Figure 5 is compared with sinusoidal wave.As for level c, if level a is 1, one 30 sinusoidal wave degree position is a mean place.Thereby by following definite gain Z:sin30 °=0.5.In this connection,, can regulate this value in from 0.5 to 0.3 left and right sides scope for the level and smooth purpose of selecting the waveform of signal.
In Fig. 6, signal distribution circuit has a logical construction as shown in Figure 7.This logical construction almost logical construction with embodiment illustrated in fig. 4 is identical.Corresponding to four level that the maximum level from selection signal su shown in Figure 5 reduces successively, each signal allocation output ut, uh, ul, ub become high level.Be response high level ut, uh, ul, ub, each switch that is connected to each electric current distributing signal a, c, b, d is switched on.As a result, produce su shown in Figure 5.Other select signal sv, sw also to produce in an identical manner.In this manner, the output signal of distributor circuit is provided for analog switch group 32, to select direct current signal a, b, c, d.The signal of selecting is imported into amplifier 33, and the output signal of amplifier 33 is imported into a filter circuit.
According to this embodiment, select the resolution of signal to increase, produce better effect to reducing noise.Thus, in this embodiment, directly will select sets of signals s and carrier signal comparison and do not use filter circuit also can produce level and smooth motor current to a certain extent.Therefore, remove the influence that filter circuit has been eliminated the filter circuit time constant, thereby on very wide speed scope, reduced noise.
Logical construction shown in Figure 7 can automatically be produced by position detection signal.Yet the phase relation between position detection signal and the selection signal also can change by logic device.For example, if the phase difference of the position probing between speed two operating points that difference is very big each other is excessive, can handle this situation by the logical construction of signal distribution circuit in the drive circuit that changes present embodiment.In this connection, filter circuit shown in Figure 3 is the elementary delay circuit with the simple structure that comprises resistor and capacitor, and this circuit can replace with the filter circuit with labyrinth (as multistage CR filter).
In this embodiment, filter circuit 10 uses the frequency of a responsive stationary time constant to make step signal level and smooth.Therefore, motor current is level and smooth under specific motor speed.In addition, filter time constant also can respond speed and change.Therefore, if a variable time constant filter applies to a covering wide scope can have been kept motor efficiency with the motor of speed when reducing noise.
(embodiment 3)
In this embodiment, as shown in Figure 8, inverter unit 6 includes the monolithic semiconductor integrated circuit that comprises drive circuit described in embodiment 1 and 2, if this inverter unit 6 is integrated in the motor by integral body, can have following superiority.
(1) because inverter unit 6 can be miniaturized, inverter unit 6 can be incorporated in the motor.
(2) because inverter unit 6 can be incorporated in the motor, therefore can omit lead-in wire, thereby no longer need position detection signal is sent motor.
(3) because the distance between position detecting circuit and the inverter unit shortens, and position detection signal is logical signal, the noise resistance of the output voltage dv/dt noise of inverter unit strengthens.
(4) the integrated accuracy that has improved inverter (or similar device) gain that changes the motor current instruction of the monolithic of inverter unit.
(5) well-known, the motor load increase causes motor current phase delay, causes motor efficiency low.When load increased, the output current of inverter became bigger, caused inverter 6 temperature to raise.In this case, in order to reduce filter time constant, make the resistor in the filter circuit have negative temperature characteristic, or the capacitor in the filter circuit have negative temperature characteristic.Therefore, when inverter unit 6 temperature rose, current phase was more pushed ahead, and helps temperature-compensating, prevented that motor efficiency from reducing.
(6) because a d. c. voltage signal can be controlled the motor current instruction, therefore can simplify lead-in wire from motor.
(7) well-known, when the motor speed increased, its phase place was tending towards leading with respect to the current phase that realizes maximum motor efficient.According to the present invention, the filter circuit that can provide has the characteristic of the speed delayed current phase place of response increase.Therefore, reduction that can compensated motor efficient.
As shown in Figure 8, the stator 52 that comprises the motor winding is installed to motor casing 51.Winding input terminal 58 is fixed to stator 52.P-m rotor 53 is installed in the stator 52, with a suitable gap p-m rotor 53 is set simultaneously, prevents that rotor 53 from contacting with stator 52.Comprise that the magnetic pole position detector (Hall IC) 5 of inverter unit, detection rotor position of magnetic pole of present embodiment and the monolithic semiconductor integrated circuit 6 with substrate 54 of peripheral circuit are installed on the rotor 53, are coated with shell 55 again.In addition, in Fig. 8, though for ease of describing position detector 5 is shown in (direction that makes progress) on the substrate surface, position detector 5 actual installation are at the dorsal part of substrate, make its near rotor to be easy to the position of magnetic pole of detection rotor.At this point, the winding input terminal 58 of stator side is connected to inverter output end 57 by lead 56.In addition, the lead 59 that drives inverter is pulled out from substrate 54.The minimum number of the lead of drive motor is five: the side of the positive electrode of the high voltage source of drive motor; Its negative side (ground connection); The side of the positive electrode of the control power supply of monolithic integrated circuit; The input signal of control motor current; Output signal with the motor rotation.Therefore, in this embodiment, be installed in the outer situation of motor casing with motor drive circuit and compare, reduced the quantity of lead widely.
(embodiment 4)
Fig. 9 shows the cross section according to the monolithic semiconductor integrated circuit of this embodiment, and motor drive circuit is formed at wherein.In this embodiment, integrated circuit is formed on the dielectric isolation substrate.Be coated with dielectric (insulator) silicon oxide film (SiO
2) be formed with the thyristor (IGBT) that constitutes inverter unit 3 in 42 the single-crystal islands 44; High speed diode; Inverter driving moving cell 8; Constitute the electric component of the circuit that produces pwm signal; And similar device.These electric components are connected to lead 43.Each single-crystal islands 44 is by silicon oxide film 42 and other element electric insulations, and by polycrystalline silicon substrate 41 supportings, polycrystalline silicon substrate 41 covers single-crystal islands 44 and silicon oxide film 42.
Figure 10 shows the plane pattern of monolithic semiconductor integrated circuit shown in Figure 9.On monolithic integrated circuit chip 45, have on the zone and six high speed diodes 46 have been installed in mode adjacent one another are, have on the zone and six IGBT47 have been installed in mode adjacent one another are.These semiconductor elements constitute inverter unit.With the regional adjacent of IGBT is installed, the circuit that is used to control the inverter driving moving cell of these IGBT on/off states and produce pwm signal is formed on regional 48.Each circuit region is formed on the above-mentioned single-crystal islands 44, and single-crystal islands 44 is by silicon oxide film 42 and substrate insulation.Because zone 48 circuit structure is identical with embodiment's 1 to 3, the circuit structure in zone 48 is simple relatively, though in the circuit of inverter driving moving cell and generation pwm signal is included in.This just causes 48 zonules that take on the chip, zone.Therefore, the circuit of inverter unit, inverter driving moving cell and generation pwm signal can be embedded in the little chip.
Claims (15)
1. the drive circuit that has the motor of stator winding and p-m rotor, described motor drive circuit comprises:
Be used for providing the power inverter of the driving power of modulating through pulsewidth to motor;
Be used to detect the device of motor rotor position of magnetic pole;
Be used for detecting the device of motor rotary speed from the output of the device that detects position of magnetic pole;
Be used to export the device of the deviation of the motor rotary speed of detection and speed command;
Be used to respond the device that described deviation produces a plurality of command signals;
Signal selecting, according to one in a plurality of command signals of motor magnetic pole choice of location, and sets of signals is selected in output;
Be used for from the device of described selection sets of signals and carrier signal generation modulating wave; With
Be used for coming by pulse-width modulation the device of power controlling converter according to modulating wave.
2. according to the motor drive circuit of claim 1, wherein,
Described a plurality of command signal has a plurality of DC level; Described modulating wave has the level corresponding to this DC level.
3. according to the motor drive circuit of claim 1, wherein,
Filter circuit is arranged on the output of described signal selecting and is used to and produces between the device of modulating wave.
4. conductor integrated circuit device comprises in same semiconductor chip:
Be used for providing the thyristor of the power of modulating through pulsewidth to motor;
Be used to produce the device of a plurality of command signals with the deviation of response motor rotational speed signal and speed command;
Thereby be used for selecting a device of a plurality of command signals with the position of magnetic pole detection signal of generation modulating wave response motor; And
Be used for controlling by pulse-width modulation the device of thyristor according to modulating wave.
5. according to the semiconductor integrated circuit of claim 4, wherein:
Be formed on above-mentioned same on-chip described thyristor by dielectric and the device insulation that drives thyristor.
6. according to the semiconductor integrated circuit of claim 4, wherein:
Described thyristor is IGBT.
7. electric motor drive system comprises:
Have the stator of being with winding and the motor with p-m rotor, described p-m rotor is placed in the stator;
Power inverter provides the driving power of pulse width modulation controlled to motor;
Magnetic pole position detector is used to detect the position of magnetic pole of motor rotor;
Speed detector is used for detecting the motor rotary speed according to the output signal of magnetic pole position detector;
The speed control operation device is used for the output signal of output speed checkout gear and the deviation of speed command;
Be used to produce the device of a plurality of command signals with the output signal of response speed control operation device;
Be used for according to the output signal of speed control operation device by selecting a signal to produce the device of modulating wave from a plurality of command signals; With
Be used for according to the device of modulating wave by the pulse width modulation controlled power inverter.
8. according to the electric motor drive system of claim 7, wherein:
Described motor is a three-phase brushless motor.
9. according to the electric motor drive system of claim 7, wherein:
It is the Hall IC with zero cross circuit that described position of magnetic pole detects.
10. according to the electric motor drive system of claim 7, wherein:
The device of described power inverter, a plurality of command signals of described generation, described by from a plurality of command signals, selecting a device that produces modulating wave and described device to be formed on the same semiconductor chip by the pulse width modulation controlled power inverter.
11. according to the electric motor drive system of claim 7, wherein:
Described power inverter is an inverter unit with diode and IGBT.
12. a motor, it comprises the stator of being with winding, is placed on p-m rotor and a casing that holds stator and rotor in the stator, and wherein this motor is driven by drive circuit,
Described drive circuit comprises:
Power inverter provides the driving power of pulse-width modulation to motor;
Be used to detect the device of the position of magnetic pole of motor rotor;
Be used for detecting the device of motor rotary speed according to the output of the device that detects position of magnetic pole;
Be used to export the device of the deviation of the motor rotary speed of detection and speed command;
Be used to respond the device that this deviation produces a plurality of command signals;
Signal selecting be used for selecting a signal according to the motor magnetic pole position from a plurality of command signals, and sets of signals is selected in output;
Be used for from the device of described selection sets of signals and carrier signal generation modulating wave;
Be used for according to the device of modulating wave by the pulse width modulation controlled power inverter;
Wherein said motor drive circuit is positioned in the casing.
13. according to the motor of claim 12, wherein:
Following element is formed on the same semiconductor chip as semiconductor integrated circuit:
Be used for providing to motor the thyristor of the power of modulating through pulsewidth at drive circuit;
Be used to produce the device of a plurality of command signals with the deviation of response motor rotational speed signal and speed command;
Thereby be used for selecting a device of a plurality of command signals with the position of magnetic pole detection signal of generation modulating wave response motor; With
Be used for controlling by pulse-width modulation the device of thyristor according to modulating wave.
14. according to the motor of claim 13, wherein:
Placing magnetic pole position detector makes it nearer apart from semiconductor integrated circuit apart from the p-m rotor ratio.
15. a method of utilizing power inverter to drive brushless motor, this power inverter is by the pulse-width modulation Be Controlled, and described method comprises step:
Produce the deviation between motor rotary speed and the speed command, the motor rotary speed is produced by the position of magnetic pole detection signal group of motor rotor;
Produce a plurality of command signals according to this deviation;
Position of magnetic pole according to motor rotor is selected a signal from a plurality of command signals, produce modulating wave; With
Pass through the pulse width modulation controlled power inverter according to modulating wave.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58021/2000 | 2000-02-29 | ||
| JP2000058021A JP3442024B2 (en) | 2000-02-29 | 2000-02-29 | Motor driving circuit, motor driving method, and semiconductor integrated circuit device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100978684A Division CN1300930C (en) | 2000-02-29 | 2001-02-28 | Electric motor, electric motor driving circuit, and semiconductor integrated circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1311559A CN1311559A (en) | 2001-09-05 |
| CN1187887C true CN1187887C (en) | 2005-02-02 |
Family
ID=18578678
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011089229A Expired - Fee Related CN1187887C (en) | 2000-02-29 | 2001-02-28 | Electric motor driving circuit, motor driving method and semiconductor integrated circuit |
| CNB2004100978684A Expired - Fee Related CN1300930C (en) | 2000-02-29 | 2001-02-28 | Electric motor, electric motor driving circuit, and semiconductor integrated circuit |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100978684A Expired - Fee Related CN1300930C (en) | 2000-02-29 | 2001-02-28 | Electric motor, electric motor driving circuit, and semiconductor integrated circuit |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6534948B2 (en) |
| EP (1) | EP1130761A3 (en) |
| JP (1) | JP3442024B2 (en) |
| KR (1) | KR100739376B1 (en) |
| CN (2) | CN1187887C (en) |
| TW (1) | TW515140B (en) |
Families Citing this family (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1237274B1 (en) * | 2001-03-02 | 2004-05-06 | Matsushita Electric Industrial Co., Ltd. | Electric motor controller |
| JP4113339B2 (en) * | 2001-06-18 | 2008-07-09 | 日本サーボ株式会社 | Three-phase annular coil permanent magnet type rotating electrical machine |
| JP4226236B2 (en) * | 2001-09-07 | 2009-02-18 | パナソニック株式会社 | Motor control device |
| EP1351376A1 (en) * | 2002-03-11 | 2003-10-08 | Askoll Holding S.r.l. | Electronic device for starting and controlling a permanent-magnet synchronous motor |
| US6828753B2 (en) * | 2002-08-26 | 2004-12-07 | International Rectifier Corporation | Input filter for A.C. motor phase current sensing |
| ATE386362T1 (en) * | 2002-12-12 | 2008-03-15 | Matsushita Electric Ind Co Ltd | ENGINE CONTROL DEVICE |
| US7207711B2 (en) | 2002-12-23 | 2007-04-24 | Premark Feg L.L.C. | Mixing device with variable speed drive and related control features |
| US7273315B2 (en) * | 2002-12-23 | 2007-09-25 | Premark Feg Llc | Mixing device with variable speed drive and related control features |
| JP2004208450A (en) * | 2002-12-26 | 2004-07-22 | Sanden Corp | Motor controller |
| JP2004242432A (en) * | 2003-02-06 | 2004-08-26 | Canon Inc | Direct-current motor drive |
| US7607437B2 (en) | 2003-08-04 | 2009-10-27 | Cardinal Health 203, Inc. | Compressor control system and method for a portable ventilator |
| US7188621B2 (en) | 2003-08-04 | 2007-03-13 | Pulmonetic Systems, Inc. | Portable ventilator system |
| US8156937B2 (en) | 2003-08-04 | 2012-04-17 | Carefusion 203, Inc. | Portable ventilator system |
| US8118024B2 (en) | 2003-08-04 | 2012-02-21 | Carefusion 203, Inc. | Mechanical ventilation system utilizing bias valve |
| JP2007501072A (en) * | 2003-08-04 | 2007-01-25 | パルモネティック システムズ インコーポレイテッド | Compressor control system for portable ventilators |
| DE10339028A1 (en) * | 2003-08-25 | 2005-03-31 | Siemens Ag | Method and apparatus for controlling a brushless DC motor |
| US8030871B1 (en) | 2003-11-26 | 2011-10-04 | Liontech Trains Llc | Model train control system having realistic speed control |
| US8154227B1 (en) | 2003-11-26 | 2012-04-10 | Liontech Trains Llc | Model train control system |
| US8013550B1 (en) | 2003-11-26 | 2011-09-06 | Liontech Trains Llc | Model train remote control system having realistic speed and special effects control |
| US7312590B1 (en) | 2003-11-26 | 2007-12-25 | The Creative Train Company, Llc | Model railroad velocity controller |
| US7049778B2 (en) * | 2004-02-09 | 2006-05-23 | Nippon Yusoki Co., Ltd. | Inverter control apparatus and inverter control method |
| WO2005085113A1 (en) * | 2004-03-02 | 2005-09-15 | Mitsubishi Denki Kabushiki Kaisha | Elevator controller |
| JP4552466B2 (en) | 2004-03-12 | 2010-09-29 | 株式会社日立製作所 | AC motor control device, 2-chip inverter and one-chip inverter. |
| JPWO2005112230A1 (en) | 2004-05-18 | 2008-05-15 | セイコーエプソン株式会社 | Electric motor |
| KR100662434B1 (en) * | 2005-11-17 | 2007-01-02 | 엘지전자 주식회사 | Driving device in washing machine and washing machine with the same |
| US7274163B1 (en) * | 2006-03-31 | 2007-09-25 | Lexmark International, Inc. | Methods and apparatus for commutating a brushless DC motor in a laser printer |
| JP4218730B2 (en) * | 2006-04-26 | 2009-02-04 | 双葉電子工業株式会社 | Servo device |
| CN101086475B (en) * | 2006-06-09 | 2011-11-30 | 深圳迈瑞生物医疗电子股份有限公司 | Air measuring device with rotation speed automatic control function and air measuring method |
| JP4557955B2 (en) * | 2006-11-08 | 2010-10-06 | 株式会社日立製作所 | Motor driving circuit, motor driving method, and semiconductor integrated circuit device |
| CN103973176B (en) * | 2007-11-16 | 2017-06-30 | 台达电子工业股份有限公司 | Motor apparatus and motor control speed system |
| US7997885B2 (en) | 2007-12-03 | 2011-08-16 | Carefusion 303, Inc. | Roots-type blower reduced acoustic signature method and apparatus |
| US8888711B2 (en) | 2008-04-08 | 2014-11-18 | Carefusion 203, Inc. | Flow sensor |
| CN101729009B (en) * | 2008-10-21 | 2013-01-16 | 深圳万讯自控股份有限公司 | Control system of direct current motor |
| CN103270376B (en) * | 2010-12-21 | 2015-04-15 | 三菱电机株式会社 | Heat pump device, heat pump system, and method for controlling three-phase inverter |
| JP5320420B2 (en) * | 2011-02-18 | 2013-10-23 | 株式会社日立ハイテクインスツルメンツ | Motor control device and motor control method |
| JP2012196048A (en) * | 2011-03-16 | 2012-10-11 | Canon Inc | Motor drive device |
| US9236777B2 (en) * | 2011-04-08 | 2016-01-12 | Bison Gear & Engineering Corp. | Bobbin wound motor |
| CN202172378U (en) * | 2011-08-04 | 2012-03-21 | 中山大洋电机制造有限公司 | DC brushless motor controller using AC electric signal to control motor at constant rotating speed running |
| US9231507B2 (en) * | 2012-01-27 | 2016-01-05 | Mitsubishi Electric Corporation | Motor driving curcuit and permanent magnet synchronous motor |
| CN102820848A (en) * | 2012-08-15 | 2012-12-12 | 欧瑞传动电气有限公司 | VOC voltage automatic adjusting method and frequency converter using same |
| US9523947B2 (en) | 2012-09-26 | 2016-12-20 | Lexmark International, Inc. | Time-based commutation method and system for controlling a fuser assembly |
| US8836747B2 (en) | 2012-10-02 | 2014-09-16 | Lexmark International, Inc. | Motor control system and method for a laser scanning unit of an imaging apparatus |
| US10944352B2 (en) * | 2018-03-19 | 2021-03-09 | Tula eTechnology, Inc. | Boosted converter for pulsed electric machine control |
| JP7189421B2 (en) * | 2018-09-21 | 2022-12-14 | ミツミ電機株式会社 | Motor drive circuit and motor drive device |
| CN114208017B (en) * | 2019-08-06 | 2022-10-28 | 三菱电机株式会社 | Motor drive system and motor drive device |
| CN110611462B (en) * | 2019-10-17 | 2021-01-15 | 江苏科技大学 | Three-stage rotating speed indicating device and method for brushless direct current motor |
| JP2021072373A (en) * | 2019-10-31 | 2021-05-06 | セイコーエプソン株式会社 | Motor drive circuit, integrated circuit device, and electronic apparatus |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4855652A (en) * | 1987-01-28 | 1989-08-08 | Hitachi, Ltd. | Speed control apparatus for a brushless direct current motor |
| US5463299A (en) * | 1989-06-07 | 1995-10-31 | Hitachi, Ltd. | Current controller for controlling a current flowing in a load using a PWM inverter and method used thereby |
| DE69113528T2 (en) * | 1990-07-06 | 1996-02-29 | Hitachi Ltd | Brushless motor with built-in integrated circuit, which includes a peripheral circuit with a chip. |
| US5350988A (en) * | 1990-07-10 | 1994-09-27 | Alliedsignal, Inc. | Digital motor controller |
| JPH04236190A (en) * | 1991-01-11 | 1992-08-25 | Toyota Motor Corp | Electric controller for brushless motor |
| FR2717014B1 (en) * | 1994-03-01 | 1996-04-26 | Telemecanique | PWM inverter control system. |
| JPH0819283A (en) * | 1994-06-28 | 1996-01-19 | Fujitsu General Ltd | Control method for brushless motor |
| JPH0835712A (en) * | 1994-07-26 | 1996-02-06 | Fujitsu General Ltd | Controller for air conditioner |
| JPH0947026A (en) * | 1995-07-25 | 1997-02-14 | Mitsubishi Electric Corp | Pwm waveform generator |
| KR0177948B1 (en) * | 1995-09-22 | 1999-05-15 | 구자홍 | An inverter control for a bldc motor drive |
| US6198240B1 (en) * | 1995-10-06 | 2001-03-06 | Hitachi, Ltd. | Motor controller |
| DE69707205T2 (en) * | 1996-01-24 | 2002-06-06 | Koninklijke Philips Electronics N.V., Eindhoven | DEVICE FOR SUPPLYING SEVERAL WINDINGS OF A MULTI-PHASE DC MOTOR WITH DRIVE SIGNALS, DRIVE SYSTEM AND PLATE DRIVE |
| KR200143530Y1 (en) * | 1996-06-28 | 1999-06-15 | 윤종용 | Driving current control apparatus of a switched reluctance motor |
| US5914582A (en) * | 1997-01-27 | 1999-06-22 | Hitachi, Ltd. | Permanent magnet synchronous motor controller and electric vehicle controller |
| JPH11113283A (en) * | 1997-09-30 | 1999-04-23 | Toshiba Corp | Motor driver |
| JP3483760B2 (en) * | 1998-03-25 | 2004-01-06 | 株式会社東芝 | Drive device for permanent magnet motor |
| EP0961396B1 (en) * | 1998-05-28 | 2005-09-28 | Ibiden Co., Ltd. | Motor-driving circuit |
-
2000
- 2000-02-29 JP JP2000058021A patent/JP3442024B2/en not_active Expired - Fee Related
-
2001
- 2001-01-18 TW TW090101168A patent/TW515140B/en not_active IP Right Cessation
- 2001-02-21 EP EP01104158A patent/EP1130761A3/en not_active Withdrawn
- 2001-02-21 US US09/790,203 patent/US6534948B2/en not_active Expired - Fee Related
- 2001-02-26 KR KR1020010009697A patent/KR100739376B1/en not_active IP Right Cessation
- 2001-02-28 CN CNB011089229A patent/CN1187887C/en not_active Expired - Fee Related
- 2001-02-28 CN CNB2004100978684A patent/CN1300930C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001251886A (en) | 2001-09-14 |
| JP3442024B2 (en) | 2003-09-02 |
| TW515140B (en) | 2002-12-21 |
| US6534948B2 (en) | 2003-03-18 |
| US20010040440A1 (en) | 2001-11-15 |
| CN1630179A (en) | 2005-06-22 |
| CN1311559A (en) | 2001-09-05 |
| KR100739376B1 (en) | 2007-07-16 |
| EP1130761A2 (en) | 2001-09-05 |
| CN1300930C (en) | 2007-02-14 |
| EP1130761A3 (en) | 2004-09-29 |
| KR20010085610A (en) | 2001-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1187887C (en) | Electric motor driving circuit, motor driving method and semiconductor integrated circuit | |
| US7839113B2 (en) | Apparatus and method for driving synchronous motor | |
| KR101046354B1 (en) | Motor and motor drive system, motor drive circuit device, method for driving motor and semiconductor integrated circuit device | |
| CN1166050C (en) | Driving system of brushless motor | |
| US8148834B2 (en) | Aircraft engine starting/generating system and method of control | |
| KR100757060B1 (en) | A switched reluctance generator with enhanced generating efficiency at low speed | |
| CN1069000C (en) | Controller of inverter for electric brush free dc motor | |
| TWI418135B (en) | Motor control method and system and digital signal processor thereof | |
| KR101949250B1 (en) | Inverter for an electric motor or generator | |
| CN101026329A (en) | Over-unity energy motor-generator | |
| EP1318597A2 (en) | Soft chopping for switched reluctance generators | |
| US9071179B2 (en) | Single-phase brushless motor | |
| US6642683B1 (en) | Controller and associated drive assembly for power sharing, time sliced control of a brushless direct current motor | |
| US6661190B1 (en) | Controller and associated drive assembly controlling a brushless direct current motor | |
| JP6590457B2 (en) | Vehicle drive control device and vehicle drive control method | |
| Yoon et al. | New approach to SRM drive with six-switch converter | |
| JP2023025444A (en) | Power conversion device | |
| JP2002335689A (en) | Motor drive circuit | |
| JP2019213396A (en) | Rotary electric machine for vehicle | |
| JP2002064990A (en) | Brushless dc motor drive circuit | |
| Romo Zabalegui | Diseño e implementación de un controlador de velocidad de motores de corriente alterna monofásicos | |
| TWM571621U (en) | DC motor with optimized torque range | |
| JPH0793824B2 (en) | Control method of inverse converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050202 Termination date: 20110228 |